rpmlint is clean all around.
License tag should be GPLv3+.
Please comment on patch status WRT upstream, and submit upstream if necessary.
Would this benefit from a .desktop file and icon? You would either have it run against the example. You could have it run against /var/log/httpd/access_log, but that'd need root and require httpd. Something to consider.
Otherwise, full review is good, no BuildRequires missing.
And I'll have a peek at 254059. If you wanted to reciprocate, 452107 should be pretty straightforward.